1--TEST-- 2__set_state return type should support covariance 3--FILE-- 4<?php 5 6class Foo { 7 public static function __set_state(array $data): self {} 8} 9 10class Foo2 { 11 public static function __set_state(array $data): static {} 12} 13 14class Foo3 { 15 public static function __set_state(array $data): Foo3|self {} 16} 17 18?> 19===DONE=== 20--EXPECT-- 21===DONE=== 22
